Amenorrhea - Missing Your Period - Pregnancy Diagnosis

Amenorrhea is the absence of a menstrual period. Most women are used to getting their period, their monthly bleeding, on a regular basis which is usually about every 28 days. Missing your period can be of concern to some women.  The medical term for missing your period is "amenorrhea," the absence of menstruation.

Amenorrhea may be classified as primary amenorhea, when a woman never had her period by the age of 16 or secondary amenorrhea, when a woman who has had her periods stops having them.

If you had unprotected intercourse and your period is missing, the first thing to find out is whether you could be pregnant or not. Doing a pregnancy test will answer that question quickly. A urine pregnancy test is usually positive within a couple of days after you miss your period, about 15-16 days after ovulation.

If you are not pregnant, and your pregnancy test is repeatedly negative, then the major other reason for not getting your period is anovulation, when you are not ovulating.